Entertainment

5 Ace Acoustic Amplifiers for the iPhone

There is a range of iPhone "speakers" available that require not one iota of power beyond simple, good old-fashioned analogue acoustics.

As well as offering an unusual and stylish stand solution, these "passive amplifiers" will boost your iPhone's audio output by around 10 decibels — not exactly room filling sound, but not bad for a planet-hugging, power-free solution.

If you think you could use some of that acoustic goodness in your iLife, then take a look through our gallery of the five best solutions available. Let us know which one blows your trumpet in the comments below.

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